And WEAR A FACE MASK!
Mine is aluminized just in front of my eyes. Not while pouring, but when I put another chunk of old hard disk down into the melting pot. It obviously had some water trapped in a hole or pocket, and I had not held it over the furnace long enough for this to evaporate. I got scared but not injured thanks to the protection.
The spatter is thin enough that I can see through it, looks like it's anti-glare coated.
If using Hexachloroethane tablets for degassing, do it in a well ventilated place or outdoors for health reasons. There are now less harmful products available.
Things I placed out loong time ago:
http://home.eunet.no/~einar/metalmodel/ http://home.eunet.no/~einar/casting/ http://home.eunet.no/~einar/casting/smelteovn/